| article html file updated | 6 February 2020 11:28 CET | Update | https://www.mdpi.com/1999-4907/5/8/1967 |
| article html file updated | 7 May 2019 09:43 CEST | Update | - |
| article html file updated | 21 March 2019 23:06 CET | Update | - |
| article html file updated | 20 August 2015 15:29 CEST | Update | - |
| article html file updated | 21 August 2014 12:59 CEST | Original file | - |
| article xml file uploaded | 21 August 2014 12:59 CEST | Original file | https://www.mdpi.com/1999-4907/5/8/1967/xml |
| article pdf uploaded. | 18 August 2014 15:41 CEST | Updated version of record | https://www.mdpi.com/1999-4907/5/8/1967/pdf |
| article pdf uploaded. | 14 August 2014 14:30 CEST | Version of Record | https://www.mdpi.com/1999-4907/5/8/1967/pdf-vor |
